Premature babies sometimes suffer from
lp)ldywa+8e0x :5oehi n c8 tw,8tk h/ infant respiratory distress syndrome, which could be caused by a lack of sufficient surfactant in the pulmonary alveoli. The diagram below shows two different alveoli st
8hptnt+hid0 o8,/aexl 58ek c:)ww y lructures.
1.Describe one feature of the surfactant.
2.Suggest a treatment for infant respiratory distress syndrome.
3.Draw a labelled diagram of the structures in an alveolus that are important for gas exchange.